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Orderly charging control method of plug-in electric vehicles in active distribution network

A charging control method and active distribution network technology, applied in electric vehicle charging technology, electric vehicles, efficient vehicle charging, etc., can solve problems such as reducing voltage quality, reduce voltage fluctuations and network imbalances, and ensure the number of units effect with effect

Active Publication Date: 2019-06-11
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The traditional orderly charging control strategy does not include the reactive power injection of electric vehicles to the grid, thus reducing the voltage quality

Method used

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  • Orderly charging control method of plug-in electric vehicles in active distribution network
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  • Orderly charging control method of plug-in electric vehicles in active distribution network

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0051] Aiming at the current situation of disorderly charging of electric vehicles, the present invention proposes a control method for orderly charging and discharging of electric vehicles in combination with a three-phase four-wire unbalanced low-voltage network and rooftop photovoltaics. By making smart EV battery charging decisions to protect against line / transformer overload (due to extreme PEV charging), undervoltage (during peak load times) and overv...

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Abstract

The invention relates to an orderly charging control method of plug-in electric vehicles in an active distribution network. The method is used for preventing generation of overload, undervoltage and overvoltage of a circuit or a transformer and further reducing power generation cost and controlling the degree of voltage imbalance by formulating an intelligent charging decision of batteries of theplug-in electric vehicles. Orderly charging is performed at selected single-phase nodes, and according to the current reactive electricity price, reactive injection is provided to improve the voltagequality. Compared with the prior art, the orderly charging control method has the advantages of reducing voltage fluctuations and network imbalance degrees and the like.

Description

technical field [0001] The invention relates to the field of orderly charging of electric vehicles, in particular to a control method for orderly charging of electric vehicles in an active distribution network based on the reactive power of an inverter. Background technique [0002] Excessive emissions of greenhouse gases have led to aggravated global warming. As a new generation of transportation, electric vehicles have incomparable advantages over traditional vehicles in terms of energy saving, emission reduction and reducing human dependence on traditional fossil energy. The increasing popularity of electric vehicles (plug-in electric vehicles, PEV) and large-scale access to the grid will have a non-negligible impact on the operation and planning of the power system. Mainly include: 1) the increase of load; 2) the increase of the difficulty of power grid operation optimization; 3) the influence of power quality; 4) put forward new requirements for distribution network pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/00B60L53/62B60L53/63B60L53/64B60L55/00
CPCY02T10/92Y02T90/14
Inventor 谢伟苏向敬孟祥浩符杨谢邦鹏米阳刘舒
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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